Full list of all 62 Serious Sam 3: BFE achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 61 achievements, and there is 1 DLC pack containing 1 achievements.
Complete the campaign in cooperative with at least 2 players.
Complete a Coin-op cooperative game on normal or higher difficulty.
Decapitate a Khnum.
Pick up 100 gold coins.
Pick up at least 10 extra life items.
Complete any level in cooperative with at least 2 players.
Earn a gold medal in Survival.
Complete the game in single player without manually reloading, aiming or sprinting.
Complete the game in single player in half the estimated time on each level.
Decorate the Christmas tree on each level to unlock Rodolfo player model.
Pierce 5 enemies with one Devastator round.
Decipher all Egyptian texts.
Decorate the Christmas tree.
Complete the single player campaign.
Complete the game in single player on unmodified serious difficulty.
Complete The Guardian of Time in single player on serious difficulty without dying or loading.
Awake the Guardian of Time.
Find all secrets in single player.
Kill at least 5 headless kamikazes in one explosion.
Find the Vista secret.
Power up the Timelock.
Use the Mutilator to surf after a Werebull.
Kill a Witch-Bride of Achriman.
Kill 20 enemies with the Minigun without releasing the trigger.
Kill 5 Cave Demons while they're in air.
Rip Scrapjack's head off.
Perform all possible finishing moves in the game.
Tear off 10 Kleer heads.
Blow a Major Biomechanoid into pieces.
Kill an enemy using the Mutilator.
Solve the riddle of the Sphynx.
Break 5 Arachnoid necks.
Secure the bird.
Find at least 50 secrets in single player.
Smash 20 Kleers with the Sledgehammer.
Break 10 Soldier necks.
Rip 10 Juvenile spiders apart.
Gib 20 enemies from close range with a shotgun.
Rescue professor Stein. So to say.
Squash 10 Hatchling spiders.
Complete any level in single player.
Decipher an Egyptian text.
Kill the kicked enemy while it is still in the air.
Rip out 10 Rocketeer hearts.
Remove 10 Gnaar eyes.
Kill an enemy with a gib torn from another enemy.
Find Sam's classic outfit
Win one round in Last Man Standing game with at least 4 players.
Win one My Burden match with at least 3 players.
Complete a Beast Hunt match
Make at least 3 kills in one Instant Kill match.
Score a total of 10 points in CTF matches.
Win 10 deathmatch games.
Win a versus match.
Frag 20 players with the Sledgehammer.
Kill at least 3 enemies in one spinning Sledgehammer attack.
Kill 3 enemies in one sprint with the Sledgehammer.
Earn a medal in Survival.
Complete a deathmatch game with at least 1 frag.
Complete the Jewel of The Nile single player campaign.